CVE-2026-43665

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreHIGH confidence

Score 5.5 from GitHub Security Advisory published 2026-07-27. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 5 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

This issue was addressed with additional entitlement checks. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8. A local attacker may be able to determine the legacy VNC password configured for Screen Sharing.

CVSS v3
5.5
EG Score
5.5(high)
EG Risk
25(Track)
EG Risk 25/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

July 27, 2026

Last Modified

July 29, 2026

Advisory Details (2)

Auto-updated Jul 28, 2026
No patch confirmed yet.
generic

About the security content of macOS Sonoma 14.8.8 - Apple Support

https://support.apple.com/en-us/128072
generic

About the security content of macOS Sequoia 15.7.8 - Apple Support

https://support.apple.com/en-us/128071

Vendor Advisories for CVE-2026-43665(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-02 19:46 UTCGHSA enrichment
  2. 2026-08-01 19:06 UTCEG score recompute
  3. 2026-08-01 19:06 UTCGHSA enrichment
  4. 2026-08-01 04:16 UTCEPSS rescore
  5. 2026-07-31 18:26 UTCGHSA enrichment
  6. 2026-07-30 17:46 UTCEG score recompute
  7. 2026-07-30 17:46 UTCGHSA enrichment
  8. 2026-07-30 16:28 UTCEPSS rescore
  9. 2026-07-30 01:30 UTCEPSS rescore
  10. 2026-07-29 17:05 UTCEG score recompute
  11. 2026-07-29 17:05 UTCGHSA enrichment
  12. 2026-07-28 16:27 UTCEG score recompute
  13. 2026-07-28 16:27 UTCGHSA enrichment
  14. 2026-07-28 15:36 UTCEPSS rescore
  15. 2026-07-28 15:30 UTCEG score recompute▲ 5.50
  16. 2026-07-28 15:30 UTCGHSA enrichment
  17. 2026-07-28 15:29 UTCMITRE cvelistV5CVSS v3 → 5.5 · severity → MEDIUM
  18. 2026-07-27 21:19 UTCNVD update
  19. 2026-07-27 20:26 UTCEG score recompute
  20. 2026-07-27 20:24 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-43665?
CVE-2026-43665 is a medium vulnerability published on July 27, 2026. This issue was addressed with additional entitlement checks. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8. A local attacker may be able to determine the legacy VNC password configured for Screen Sharing.
When was CVE-2026-43665 disclosed?
CVE-2026-43665 was first published in the National Vulnerability Database on July 27, 2026, with the most recent update on July 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43665 actively exploited?
CVE-2026-43665 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 99.1% of all scored CVEs.
What is the CVSS score of CVE-2026-43665?
CVE-2026-43665 has a CVSS v3.1 base score of 5.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-43665?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43665, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-43665

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